Burkert Type 0131 (SKU 56512) is a direct-acting toggle valve designed for controlling, shutting off, and dosing aggressive and non-aggressive media. Thanks to the diaphragm separation between the actuator and valve body, aggressive media such as acids and alkaline solutions can be safely controlled. The 56512 variant features a PVC housing and EPDM seals, making it highly resistant to chemical corrosion. The solenoids are moulded with a highly resistant chemical epoxy, ensuring durability in demanding industrial environments.

Key Features

• Direct-acting media-separated valve up to DN 20
• Vibration-proof, block screwed solenoid system
• Robust, service-friendly manual override
• Suitable for aggressive media due to PVC body and diaphragm separation

Circuit Function

Circuit function A (CF A): 2/2-way solenoid valve, direct-acting, normally closed.

Materials (2/2-Way Plastic Variant)

No.	Element	Material
1	Coil	Epoxy
2	Plunger	Stainless steel 1.4105
3	Toggle pin	PTFE
4	True union nut	PVC
5	O-ring	FKM, EPDM
6	Connection fitting	True union, threaded, weld end
7	Body	PVC
8	Closing body	FKM, EPDM
9	O-ring	FKM, EPDM
10	Lateral flange	PC
11	-	Manual override with locking function

Dimensions

INFO

Dimensions are in mm. The following applies to the 2/2-way plastic variant with true union nut and connection fitting.

Material	DN	Connection	B	C	D	L1	L2
PVC	10	True union	17	14	Ø 16.2	130	99.5
PVC	10	Threaded	17	12	G 3/8	130	99.5
PVC	10	Threaded	17	12	NPT 3/8	130	99.5
PVC	10 (with port for DN 15)	True union	19	16	Ø 20.2	134	101.5
PVC	10 (with port for DN 15)	Threaded	19	13	G 1/2	134	101.5
PVC	10 (with port for DN 15)	Threaded	19	14	NPT 1/2	134	101.5
PVC	15	True union	19	16	Ø 20.2	136	103.0
PVC	15	Threaded	19	13	G 1/2	136	103.0
PVC	15	Threaded	19	14	NPT 1/2	136	103.0
PVC	15 (with port for DN 20)	True union	22	19	Ø 25.2	142	106.0
PVC	15 (with port for DN 20)	Threaded	22	15	G 3/4	142	106.0
PVC	15 (with port for DN 20)	Threaded	22	16	NPT 3/4	142	106.0
PVC	20	True union	22	19	Ø 25.2	144	107.0
PVC	20	Threaded	22	15	G 3/4	144	107.0
PVC	20	Threaded	22	16	NPT 3/4	144	107.0

Operating Conditions

Parameter	Value
Ambient temperature	Max. +50 °C
Degree of protection	IP65 in accordance with DIN EN 60529/IEC 60529 with cable plug
Operating duration	Continuous operation (unless otherwise specified)
Medium temperature (PVC/EPDM)	-10 °C to +50 °C
Storage temperature (PVC)	-10 °C to +50 °C
Viscosity	Max. 37 mm²/s

WARNING

Risk of injury from high pressure Before loosening lines and valves, turn off the pressure and vent the lines. High pressure surges can occur with liquids that have a high differential pressure and high flow velocity.

TIP

Manual Override When manual override is locked, the valve can no longer be electrically actuated. To override the valve manually, press the manual override and turn it 90° clockwise until it stops.

Installation Notes

• Installation position: Any, preferably with actuator on top.
• Preparation: Clean pipelines of any contamination. Install a dirt trap upstream of the valve inlet (≤ 500 μm).
• Body with PVC adhesive sleeves: Use Tangit special adhesive.
• Tension: The valve body must not be installed under tension. Seal material must not get into the device.
• Flow direction: The arrow or letters on the body indicate the flow direction: from P → A (NC).